【摘要】 在分析了建筑物实测阻尼比的变化规律的基础上,探讨了建筑结构非线性阻尼产生的机理,并采用数值方法分析了单自由度非线性阻尼结构在不同荷载条件下的振动反应,分析结果说明:非线性阻尼结构地震反应与常阻尼比结构地震反应差异较大,采用常阻尼比(5%)进行建筑物地震反应分析可能产生不安全的结果.更多还原

【Abstract】 After investigating the development trend of damping ratio of building,this paper discussed the mechanism of non-linear damping and analyzed the dynamic responses of Single Degree of Freedom(SDOF) with non-linear damping ratio under various loads by numerical method.The research results indicated that the dynamic responses between non-linear damping structures and constant damping structures were quite different,and unsafe results would be obtained with constant damping ratio(5%) model.更多还原